Vikings, History Channel's semi-historical epic drama (a sort of Nordic Game of Thrones), returns for Season 5 at 8 p.m. Wednesday. Brace yourselves. The fifth season will have 20 episodes and air in two parts, beginning with a two-hour premiere, followed by eight more episodes airing at the same time on subsequent Wednesdays. After a break, the remaining 10 episodes are scheduled for an unannounced date in 2018.I've seen the new double episode, "The Departed," and can promise fans that Vikings still has all the elements we've come to love -- lusty warriors, fearless (and seemingly ageless) shield-maidens, blood and guts, intrigue, mysticism,...